Use python 3.6 and 3.7
Use python 3.6 and 3.7

ktaneishi/deepchem,ktaneishi/deepchem,lilleswing/deepchem,miaecle/deepchem,peastman/deepchem,lilleswing/deepchem,deepchem/deepchem,peastman/deepchem,lilleswing/deepchem,miaecle/deepchem,deepchem/deepchem,miaecle/deepchem,ktaneishi/deepchem